Texas Instruments MSP430F6747AIPZ

Overview

MSP430F6747AIPZ from Texas Instruments is a polyphase metering SoC designed for high-accuracy energy measurement in 3-phase utility meters. It integrates four independent 24-bit sigma-delta ADCs, 256KB flash, 32KB RAM, LCD controller (320 segments), and hardware AES-128 encryption - all operating at ≤0.1% error over 2000:1 dynamic range and compliant with ANSI C12.20 and IEC 62053 standards.

For engineers reviewing the MSP430F6747AIPZ datasheet, MSP430F6747AIPZ pinout, MSP430F6747AIPZ application, or MSP430F6747AIPZ equivalent, this page delivers verified technical context, validated pin functions, real-world metering use cases, and confirmed alternative options for smart grid and industrial energy monitoring designs.

Technical Context

The MSP430F6747AIPZ implements a dedicated metrology subsystem with four SD24_B sigma-delta modulators supporting differential current/voltage sensing across three phases plus neutral. Its 25-MHz CPU with 32-bit hardware multiplier executes real-time energy calculations including active/reactive power, RMS, and phase-angle measurements using on-chip calibration coefficients.

Dual-domain power management enables simultaneous operation of analog metrology (AVCC/AVSS) and digital core (DVCC/DVSS) supplies, with ultra-low-power LPM3.5 mode (0.34 µA) sustaining RTC and tamper detection during AC mains failure. The device supports flexible sensor inputs - current transformers, Rogowski coils, or shunts - with digital phase correction and temperature-compensated energy computation.

Key Specifications

Pinout & Package

Package: 100-pin LQFP (PZ), 14 mm × 14 mm body size, 0.5 mm pitch. Thermal pad exposed on underside for enhanced heat dissipation in sealed meter enclosures.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar polyphase metering applications.

Compared with MSP430F6747AIPZ, the MSP430F6747AIPEU offers expanded I/O for complex HMI or multi-interface designs, while the MSP430F6767AIPZ provides two additional sigma-delta channels for enhanced neutral-current accuracy - both retain identical metrology algorithms and security features.

Availability

MSP430F6747AIPZ is available at Aetrix Electronics and suitable for smart electricity meters, industrial energy monitors, AMI endpoint nodes, and tamper-resistant submeters requiring stable component supply across multi-year utility deployments.

Supply support for MSP430F6747AIPZ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader delivering analog and embedded processing solutions, with deep expertise in low-power microcontrollers and precision metrology systems.

The MSP430F6747AIPZ belongs to TI's Metrology and Monitoring MCU portfolio, engineered specifically for revenue-grade energy measurement in utility-grade smart meters and industrial power analyzers.

FAQ

What is the maximum dynamic range supported by the MSP430F6747AIPZ for current measurement?

The MSP430F6747AIPZ achieves better than 0.1% accuracy over a 2000:1 dynamic range for phase current measurement, validated per ANSI C12.20 and IEC 62053-22 standards. This performance is enabled by its four independent 24-bit sigma-delta ADCs with programmable gain amplifiers and on-chip digital filtering - ensuring precise resolution from milliamp standby loads to hundreds-of-amp peak currents without range switching.

Does the MSP430F6747AIPZ support tamper detection with battery backup?

Yes, the MSP430F6747AIPZ integrates a password-protected RTC with hardware tamper detection for voltage, temperature, and case intrusion events. In LPM3.5 mode, it consumes only 0.34 µA at 3 V, allowing a standard CR2032 coin cell to sustain RTC and tamper logging for over one year - critical for evidentiary timestamping in utility anti-tampering compliance.

How many communication interfaces does the MSP430F6747AIPZ include, and what protocols are supported?

The MSP430F6747AIPZ includes six enhanced Universal Serial Communication Interfaces (eUSCIs): four eUSCI_A modules supporting UART, IrDA, and SPI; and two eUSCI_B modules supporting SPI and I²C. This enables concurrent connections to optical ports (UART), PLC modems (SPI), and environmental sensors (I²C) - all with DMA-triggered transfers to minimize CPU load during metrology processing.

Can the MSP430F6747AIPZ drive a 320-segment LCD directly without external components?

Yes, the MSP430F6747AIPZ integrates a full-featured LCD_C peripheral supporting up to 320 segments via eight COM lines and up to 40 SEG lines. It includes internal charge pump, contrast control registers, and blinking modes - eliminating external bias generators, resistors, or capacitors required by most standalone LCD drivers.

What is the role of the SD24_B module in the MSP430F6747AIPZ, and how many channels does it provide?

The SD24_B module in the MSP430F6747AIPZ is a configurable 24-bit sigma-delta analog-to-digital converter subsystem optimized for metrology. It provides four independent SD24_B channels (SD0–SD3), each with differential inputs, programmable gain, and built-in decimation filters - enabling simultaneous sampling of voltage and current across three phases plus neutral for true polyphase energy calculation within the MSP430F6747AIPZ.